Artificial intelligent assistant

three-edged

ˈthree-ˈedged, a.
  (-ɛdʒd: stress var.)
  Having three edges. Also fig.

1398 Trevisa Barth. De P.R. xvii. xxxv. (Bodl. MS.), Segge..is acounted amonge kindes of rissches, as Sias seiþ, and cleped it a þre egged ruyssche. 1541 R. Copland Guydon's Quest. Chirurg. L iij b, Nedles..euen and smoth, and thre edged at the poynte. 1685 Lond. Gaz. No. 2085/4 Lost.., a large Silver Hilted Sword, with..a long three edged blade. 1793 Martyn Lang. Bot., Three-cornered or Three-edged, trigonus. 1898 G. W. E. Russell Collect. & Recoll. xix. (1903) 178 This three-edged compliment has seldom been surpassed. 1900 B. D. Jackson Gloss. Bot. Terms 270/2 Three-edged, with three sides,..and three acute angles, triquetrous.

Oxford English Dictionary

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